Who's she?
She's a cook.
Is she a cook?
No, she isn't. She's a nurse.
Is she a farmer?
Yes, she is.
Who's she?
She's a student.
Who's she?
She's a doctor.
Is she a taxi driver?
Yes, he is.
Who's he?
He's a teacher.
Is he a taxi driver?
No, isn't . He's a police officer.
